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| 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are |
| 4 // met: |
| 5 // |
| 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided |
| 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. |
| 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 |
| 28 // Flags: --allow-natives-syntax |
| 29 |
| 30 // Check that keyed stores make things go dict mode faster than non-keyed |
| 31 // stores. |
| 32 |
| 33 function AddProps(obj) { |
| 34 for (var i = 0; i < 26; i++) { |
| 35 obj["x" + i] = 0; |
| 36 } |
| 37 } |
| 38 |
| 39 |
| 40 function AddPropsNonKeyed(obj) { |
| 41 obj.x0 = 0; |
| 42 obj.x1 = 0; |
| 43 obj.x2 = 0; |
| 44 obj.x3 = 0; |
| 45 obj.x4 = 0; |
| 46 obj.x5 = 0; |
| 47 obj.x6 = 0; |
| 48 obj.x7 = 0; |
| 49 obj.x8 = 0; |
| 50 obj.x9 = 0; |
| 51 obj.x10 = 0; |
| 52 obj.x11 = 0; |
| 53 obj.x12 = 0; |
| 54 obj.x13 = 0; |
| 55 obj.x14 = 0; |
| 56 obj.x15 = 0; |
| 57 obj.x16 = 0; |
| 58 obj.x17 = 0; |
| 59 obj.x18 = 0; |
| 60 obj.x19 = 0; |
| 61 obj.x20 = 0; |
| 62 obj.x21 = 0; |
| 63 obj.x22 = 0; |
| 64 obj.x23 = 0; |
| 65 obj.x24 = 0; |
| 66 obj.x25 = 0; |
| 67 } |
| 68 |
| 69 |
| 70 var keyed = {}; |
| 71 AddProps(keyed); |
| 72 assertFalse(%HasFastProperties(keyed)); |
| 73 |
| 74 var non_keyed = {}; |
| 75 AddPropsNonKeyed(non_keyed); |
| 76 assertTrue(%HasFastProperties(non_keyed)); |
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